Communications: directive radio wave systems and devices (e.g. – Radar ew
Patent
1996-07-24
1999-01-05
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Radar ew
342 90, 342192, 324 7614, 324606, 324605, 455227, 340657, 340659, G01S 740, G01S 741
Patent
active
058568034
ABSTRACT:
An apparatus for detecting abnormal radio-frequency signals has an antenna responsive to a radio-frequency signal. The radio frequency signal has a plurality of signal components, each of which has an associated amplitude. A circuit attenuates each of the plurality of signal components having an amplitude not greater than a threshold value and generates a suspect signal comprising each of the plurality of signal components having an amplitude greater than the threshold value. A circuit then compares the suspect signal to a plurality of preselected signal types. When the suspect signal does not correspond to any of the preselected signal types, a circuit generates an alarm. In a method of detecting usage of a radio-frequency weapon, a signal having an amplitude, is received. A background signal amplitude of a plurality of components of the signal is determined. The signal is filtered to generate a filtered signal corresponding only to signal components of the plurality of signal components having amplitudes greater than a preselected margin greater than the amplitude of the background signal. The filtered signal is compared to a plurality of known signals. When the filtered signal does not correspond to any of the plurality of known signals, an alarm is generated.
REFERENCES:
patent: 3662316 (1972-05-01), Robbins
patent: 3783448 (1974-01-01), Brodwin
patent: 3900848 (1975-08-01), Mears
patent: 4074264 (1978-02-01), Wilmonti
patent: 4217580 (1980-08-01), Lowenschuss
patent: 4315261 (1982-02-01), Mosher
patent: 4390838 (1983-06-01), Savage
patent: 4700191 (1987-10-01), Manor
patent: 4721924 (1988-01-01), Masdea et al.
patent: 4728958 (1988-03-01), Choate
patent: 4756866 (1988-07-01), Alvarez
patent: 4757253 (1988-07-01), Weber et al.
patent: 4792806 (1988-12-01), Bent et al.
patent: 4825149 (1989-04-01), Voss et al.
patent: 4851854 (1989-07-01), Drogin
patent: 4876551 (1989-10-01), Climent et al.
patent: 4885586 (1989-12-01), Hoover et al.
patent: 4928105 (1990-05-01), Langner
patent: 4933668 (1990-06-01), Oyer et al.
patent: 4967667 (1990-11-01), Horwath
patent: 4983983 (1991-01-01), Huntley et al.
patent: 4992797 (1991-02-01), Gjessing et al.
patent: 5010341 (1991-04-01), Huntley et al.
patent: 5063371 (1991-11-01), Oyer et al.
patent: 5168224 (1992-12-01), Maruizumi et al.
patent: 5305007 (1994-04-01), Orr et al.
patent: 5325299 (1994-06-01), Moses et al.
patent: 5392050 (1995-02-01), Guerci et al.
patent: 5400261 (1995-03-01), Reynolds
patent: 5455586 (1995-10-01), Barbier et al.
patent: 5459451 (1995-10-01), Crossfield et al.
patent: 5461383 (1995-10-01), Ono et al.
patent: 5530429 (1996-06-01), Hablov et al.
patent: 5541520 (1996-07-01), Zai et al.
patent: 5543779 (1996-08-01), Aspesi et al.
patent: 5561364 (1996-10-01), Skudera, Jr.
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